Dallas Seavey (born March 4, 1987[1]) is an Americandog musher, who won the Iditarod Trail Sled Dog Race across the U.S. state of Alaska in 2012, 2014, 2015 and 2016. In 2017, four of Seavey's sixteen-dog team tested positive for high doses of Tramadol, an opioidpain medication that is also a banned substance. The test was administered to four of the seven Seavey dogs that finished the race in second place, behind Seavey's father, Mitch Seavey. The Iditarod Trail Committee, which stages the event, did not discipline Seavey, nor ask him to return the $59,637 he won in prize money. The circumstances of the dosing of the four dogs and the high dosage prior to an expected test have led some to believe it was accidental or, as Seavey has claimed, an intentional attempt at sabotage by an outside party.

At age 25, Seavey became the youngest musher ever to win the Iditarod, winning the 2012 Iditarod in 9 days, 4 hours, 29 minutes, 26 seconds.[2][3] He is the son of 2004, 2013 and 2017 Iditarod champion Mitch Seavey. His grandfather, Dan Seavey, is also a veteran Iditarod musher, having competed in the first two Iditarod sled dog races in 1973 and 1974, in addition to the 1997 and 2012 races.[4][5]

Dallas Seavey and his dog team mushing through Anchorage, Alaska during the ceremonial start of the 2012 Iditarod Trail Sled Dog Race

In 2014, Dallas Seavey won his second Iditarod, completing the race less than two minutes ahead of second-place finisher Aliy Zirkle, with a record fast finish time of 8 days, 13 hours 4 minutes and 19 seconds.[6] Seavey's 2014 finish time broke the previous record of 2011 winner John Baker by more than five hours.[7]

In 2015, Seavey won the Iditarod for a third time, in a race held from Fairbanks to Nome, with the official start moved due to a lack of snow in Southcentral Alaska.[8]

In 2016, Dallas Seavey won the Iditarod for a fourth time, this time breaking his own record time. His time was 8 days, 11 hours, 20 minutes, and 16 seconds.[9]

In 2017, Dallas's record time was broken by his father, Mitch Seavey. Mitch Seavey's time was 8d 3h 40m 13s. Dallas came in second place.[10]